can anyone explain why this worked previously and not now? embedding youtube videos worked like a charm before, and indeed, it's become crucial to my band's blog. why do you have these features seduce us and then take them away?
as another poster (vidness) stated, blogger has no problems with these, offers 300megs of image uploads, and i can hang a nice del.icio.us tag cloud in the side bar. too bad, i was really getting into wordpress..

I had the same problem for the videos with both youtube and google. Might the same problem preventing flickr badge also.
I have been using wordpress for more than 2 month now, i love it and do not want to change. But clearly this feature would be on my priority list far ahead customisation to templates.

Now, I'm having a problem too.. Earlier, I was successful on embedding it. The next day, it doesn't work anymore. (my blog is not showing any embedded flash). My categories were suprisingly not functional or gone bonkers as well..

Could someone please explain to me the difference between the URL and the KEYCODE, or alternatively where I can locate keycodes at You Tube?

Using DrMike's example, I can copy/paste the keycode he's provided and upload that video to my blog. But I cannot locate any keycodes myself at You Tube, hence am unable to upload my own video. I've read the FAQ and it doesn't state where the keycode is, so it must be so obvious that it doesn't need stating ...

I started having probs. with embedded youtube a couple of days ago. The initial image appears fine, but when you click the 'play' button it says 'Loading...', but never loads. Again, vids play fine on the youtube site.
FYI I've tested it at work and at home, in FF and IE (in both places I have a firewall, as all sensible folk should). Please feel free to go to my site and let me know if it works for you.

Maras, there are a number of plugins that will allow you to play YouTube videos on your own WP blog hosted elsewhere. You can find a list of them here. There also exists another one called WP-Extreme which is the one I use myself and the one I roll out for my clients. It can play self hosted videos as well as those hosted elsewhere.

Found the solution to my problem.
The videos that were refusing to play on WP had their setting 'Allow other sites to host this video' set to false.
Simple really.
It seems this setting shows the video's first frame as a still, but doesn't allow ppl to play it.
Anyway, fixed now. :)

TJ, can we see a sample of this on your blog please? It should be working if you're following the instructions above. If you've copying and pasteing the code from YouTube like you say you are, then you are doing it wrong I'm afraid. Here's the link again for instructions on how to do it.

I have tried several times now, but it won't work for me. I know the only thing I need to do is to format it like this:
[youtube=http://www.youtube.com/watch?v=bIShN5g8e2o]
But it won't work for me, it just shows the exact format:http://www.jonsmyr.com/?p=51

What can I do? Can someone help me?

EDIT: My solution was to turn off this under profile: Use the visual rich editor when writing [*]